| General Specifications |
| AC Adapter |
Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003) |
| Accuracy (mV) |
ą0.2 mV or ą0.05% of reading whichever is greater |
| Accuracy (pH) |
ą0.002pH |
| Accuracy (Temperature) |
ą0.1°C |
| Alarm Output |
Calibration due alarm (fixed 12 hour) |
| Backlight Option |
Yes, selectable |
| Battery Life |
800 hr. |
| Battery Type |
4 x AA |
| Calibration |
pH, relative mV (RmV), ORP and temperature |
| Calibration Points |
1 point relative mV (RmV) mode, 1 point ORP mode |
| Channels |
1 |
| Certifications/Compliance |
CE, TUV 3-1, FCC Class A |
| Data Management Details |
Transfer single, range or all data points to printer or computer |
| Data Points |
1000 with Date and Time Stamp |
| Description |
Orion Star A221 pH portable meter ORP kit with low maintenance gel ORP/ATC electrode, solutions, meter armor and field case |
| Dimensions (L x W x H) |
24 x 10 x 6.5cm (9.5 x 3.9 x 2.6 in.) |
| Display Type |
LCD (Graphic with Backlight) |
| Includes |
Star A221 pH meter, 9179BNMD gel-filled ORP/ATC electrode, 967961 ORP standard, 911110 rinse solution pouch 10 pack, 910060 storage solution, protective meter armor, hard-sided field case, 4 AA batteries, literature CD, printed quick start guide, computer |
| Inputs |
BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe) |
| IP Rating |
IP-67 |
| Isopotential Point |
7.000pH |
| Keypad |
Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys |
| Languages |
English, Spanish, French, Italian, German and Chinese; Portuguese and Korean Available with Software Update |
| Log Function Type |
Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode |
| Measurement Modes |
pH, mV, relative mV (RmV) or ORP with temperature |
| Memory |
Non-volatile memory preserves data log, calibration log and meter settings |
| Model |
Orion Star A221 pH/mV/RmV/ORP/Temperature Portable Meter |
| Outputs |
USB, RS-232 |
| Power Supply |
Universal AC adapter (included) or 4 AA batteries (sold separately) |
| Probe Type |
pH electrode, ORP electrode, reference half-cell electrode, ATC temperature probe (includes 9179BNMD ORP/ATC electrode) |
| Range (mV) |
ą2000 mV |
| Range (ORP) |
ą2000.0mV |
| Range (pH) |
-2.000 to 20.000 |
| Range (Relative mV) |
ą2000.0mV |
| Relative Humidity Range |
5 to 85%, non-condensing |
| Resolution (pH) |
0.1, 0.01, 0.001 |
| Resolution (mV) |
0.1mV |
| Resolution (Temperature) |
0.1°C, 0.1°F |
| Stability |
Smart Stability and Smart Averaging |
| Temperature (English) Operating |
41° to 113°F (ambient) |
| Temperature (Metric) Operating |
5 to 45°C (ambient) |
| Temperature Probe Calibration |
1 point temperature offset calibration |
| Temperature Range (English) |
22.0 to 221.0 °F |
| Temperature Range (Metric) |
-5.0 to 105.0 °C |
| Temperature Selection |
Manual or automatic with ATC temperature probe |
| Weight (English) |
1.2 lb. |
| Weight (Metric) |
0.5kg |
| Unit Size |
Each |